$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk4-x11.git /var/lib/mock/f40-build-2712823-72076/root/chroot_tmpdir/scmroot/rust-gdk4-x11
Cloning into '/var/lib/mock/f40-build-2712823-72076/root/chroot_tmpdir/scmroot/rust-gdk4-x11'...
$ git fetch origin 7a0060478bf7640a1de869c6cd320e308468db8c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk4-x11
 * [new ref]         7a0060478bf7640a1de869c6cd320e308468db8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a00604 Update to version 0.8.1; Fixes RHBZ#2262615